.loading-overlay{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,0.5);
    z-index:1000;
    text-align: center;
    line-height: 100vh;
    color: #fff;
    font-size: 26px;
}